booknut

Same problem here.

AtlThrow: hr = 0x80070057 CCleaner v2.23.999 MS Windows 7 Standard 64-bit Intel Core2 Quad CPU Q6600 @ 2.40GHz 8.0GB RAM Radeon X1300/X1550 Series CInstallationEnumAsync::Run

Please include a recursive registry clean option. This option should keep scanning the registry and removing orphans until clean or the same set of keys show up a second time. Because this is recursive, a one time recover backup should be kept until the next time run (or keep n copies). Your tool is excellent!